Car hub unit with separately-connected hub inner side end

Abstract

The invention discloses a car hub unit with a separately-connected hub inner side end. The car hub unit comprises a central spindle, and a molding end is arranged at the inner side of the central spindle. An outer ring, inner rings and a clutch ring are arranged on the central spindle. A gasket is arranged between the molding end and the clutch ring. The gasket, the clutch ring and the inner ring are fastened on the central spindle through the molding end by a manner of flanging and riveting. The part of the gasket, facing the flanging bent part of the molding end, is provided with an inner chamfer, and the inner chamfer is a variable curvature surface. Column needle bearings are matched on the inner lateral end of the shaft hole of the central spindle, and deep groove ball bearings are matched on the outer lateral end of the shaft hole of the mandrel. Bevel gears are arranged on the inner rings and are used for testing the speed of a hub bearing unit by being matched with a speed sensor. According to the car hub unit, the current clamping ring at the flanging part is replaced by the gasket, the section of the gasket is a square, the fixed press force of the flanging is transmitted to the upper end surface of the clutch ring through the upper end surface and the lower end surface of the gasket, and the clutch ring is vertically pressed, so that the fixing stability and reliability are better, thereby effectively avoiding the phenomenon that the flanging and the riveting part of the molding end are cracked.

Description

Technical field [0001] The invention relates to an automobile hub unit, in particular to a drive-type hub bearing unit that needs to be driven and connected at the inner end of the hub. Background technique [0002] At present, many cars adopt four-wheel drive driving mode, which can obtain good power. However, when driving on a good level road, the two-wheel drive drive mode can make the vehicle obtain sufficient power. If the four-wheel drive drive mode is still used, it will increase the car’s fuel consumption and the unequal speed of the four wheels. Tire wear. Therefore, a four-wheel drive vehicle needs to be equipped with a device that allows the driver to separate and combine two of the wheels with the engine power according to the driving conditions of the vehicle to realize the switch between two-wheel drive and four-wheel drive. At present, the traditional multi-purpose sports vehicles, pickup trucks and vans in the domestic market all adopt the four-wheel drive form....

AI Technical Summary

Problems solved by technology

However, the above-mentioned structure has the following technical problems: analysis of the physical object, due to the small diameter of the snap ring, the folding cracks at the corners of the mandrel after flanging are still inevitable; The ring forms a large radial component force, which causes radial deformation of the clutch ring, and may even affect the meshing accuracy and flexibility of the clutch ring and the external drive device. image 3 It can be clearly seen that there are folding cracks on the surface

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